TPS22948 5.5-V, 0.24-A, 300-mΩ, load switch with reverse current blocking | TI.com

TPS22948
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5.5-V, 0.24-A, 300-mΩ, load switch with reverse current blocking

 

Description

The TPS22948 device is a small, single channel load switch with robust protection against fault cases with output current limiting, reverse current blocking, and thermal shutdown.

The switch ON state is controlled by a digital input that is capable of interfacing directly with low-voltage control signals. When power is first applied, a smart pull down is used to keep the ON pin from floating until system sequencing is complete. Once the pin is deliberately driven high (>VIH), the smart pull down will be disconnected to prevent unnecessary power loss. ™

TPS22948 is available in a standard SC-70 package characterized for operation over a temperature range of –40°C to 125°C.

Features

  • Input operating voltage range (VIN):
    2.5 V to 5.5 V
  • Output current limit (ILIMIT):
    240 mA (typical)
  • Thermal shutdown (TSD)
  • ON-Resistance (RON):
    300 mΩ (typical)
  • Slow Turn ON timing limits inrush current (typical):
    • Turn ON time (tON):
      820 us at 6.6 mV/µs
  • Always-ON Reverse Current Blocking (RCB):
    • ON State activation current (IRCB):
      –200 mA (typical)
  • Fault indication (FLT)
  • Smart ON pin pull down (RPD,ON):
    • ON VIH (ION): 25 nA (maximum)
    • ON VIL (RPD,ON): 500 kΩ (typical)
  • Low power consumption:
    • ON State (IQ): 50 uA (typical)
    • OFF State (ISD): 0.3 uA (typical)

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Parametrics

Compare all products in Load switches Email Download to Excel
Part number Order Number of channels (#) Vin (Min) (V) Vin (Max) (V) Imax (A) Ron (Typ) (mOhm) Shutdown current (ISD) (Typ) (uA) Quiescent current (Iq) (Typ) (uA) Soft start Rise time (Typ) (us) Features Operating temperature range (C)
TPS22948 Order now 1     2.5     5.5     0.1     300     5     50     Fixed Rise Time     500     Reverse Current Blocking     -40 to 105    
TPS22941 Order now 1     1.62     5.5     0.08     500     1     40     Fixed Rise Time     10     Active Low
Thermal Shutdown    
-40 to 85    
TPS22942 Order now 1     1.62     5.5     0.2     500     1     40     Fixed Rise Time     10     Active Low
Thermal Shutdown    
-40 to 85    
TPS22943 Order now 1     1.62     5.5     0.2     500     1     40     Fixed Rise Time     10     Thermal Shutdown     -40 to 85    
TPS22944 Order now 1     1.62     5.5     0.08     500     1     40     Fixed Rise Time     10     Thermal Shutdown     -40 to 85    
TPS22945 Order now 1     1.62     5.5     0.2     500     1     40     Fixed Rise Time     10     Thermal Shutdown     -40 to 85